CVE-2025-4449 D-Link DIR-619L formEasySetupWizard3 buffer overflow

High 8.7 Published Updated

Remote attackers can exploit a buffer overflow in the D-Link DIR-619L router to execute arbitrary code, affecting unsupported devices.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-4449?

CVE-2025-4449 is a high-severity memory corruption vulnerability in Dlink Dir-619l Firmware, published on 9 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability, which was classified as critical, has been found in D-Link DIR-619L 2.04B04. This issue affects the function formEasySetupWizard3. The manipulation of the argument wan_connected leads to buffer overflow. The attack may be initiated remotely. The vendor was contacted early about this disclosure. This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-4449?

It affects 1 product.

Products include Dlink Dir-619l Firmware.

How do I fix CVE-2025-4449?

No fix has been published for CVE-2025-4449 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-4449 being exploited?

There is no known exploitation of CVE-2025-4449 in the wild and no public exploit code.

All Dlink Dir-619l Firmware vulnerabilities

Sources

Also known as GHSA-jwpm-8696-jr8x.

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